Operating System Introduction
An Operating System (OS) acts as an interface connecting a computer user with the hardware of the computer.
- What is an Operating System?
- Features of Operating System.
- Objectives of Operating System.
An Operating System (OS) acts as an interface connecting a computer user with the hardware of the computer.
At an upper level of any computer architecture, a computer is supposed to have a processor, memory and some I/O components, with one or more quantities of each type.
An Operating System supplies different kinds of services to both the users and to the programs as well. It also provides application programs (that run within an Operating system) an environment to execute it freely.
In this chapter you will learn about the general structure of functionalities and properties that operating system provide for a typical computer system.
In this chapter you will learn about the processes that are being used and managed by the operating system.
A thread is a stream of execution throughout the process code having its own program counter which keeps track of lists of instruction to execute next, system registers which binds its current working variables.
CPU scheduling is the foundation or starting concept of multi programmed operating systems (OSs). In this tutorial, you will learn about the introductory basic of CPU-scheduling concepts.
CPU scheduling treats with the issues of deciding which of the processes in the ready queue needs to be allocated to the CPU. There are several different CPU scheduling algorithms used nowadays within an operating system. In this tutorial, you will get to know about some of them.
In a multiprogramming system, numerous processes get competed for a finite number of resources. Any process requests resources, and as the resources aren't available at that time, the process goes into a waiting state. At times, a waiting process is […]
In this chapter, you will learn about the various working capabilities of IPC (Inter-process communication) within an Operating system along with usage. Processes executing concurrently in the operating system might be either independent processes or cooperating processes. A process is […]
In this chapter, you will learn about a variety of ways for managing memory along with its working phenomenon.
In this chapter you will gather knowledge about what virtual memory is and how they are being managed within the operating system, along with its working.
For the majority of users, the file system is the most obvious aspect of any operating system. This provides users the method for storage and access to data as well as programs of the operating system where all the users […]
This tutorial is mainly concerned with issues related to file storage and accessing them on the most common secondary storage standard i.e. the disk.
In this chapter you will learn about the various usage of input output devices with respect to the operating system.
In earlier chapters, you might have learned about how operating systems handle general data, like text files, programs, binary files, word-processing documents and also spreadsheets. Moreover, operating systems may get the task to handle different kinds of data as well […]
In this chapter you will learn about the basics of Virtualization in Operating System.